1973 oil crisis
Year-round daylight saving time was implemented
U.S.
Year-round daylight saving time was implemented from January 6, 1974, to October 27, 1975, with a break between October 27, 1974, and February 23, 1975, when the country observed standard time. Parents complained loudly that it forced many children to travel to school before sunrise. The prior rules were restored in 1976.